1

Possible:
NIH diagnostic criteria for NF1 with two or more of following features:1)6 or more café-au-lait macules over 5 mm in diameter prepubertal individuals over 15 mm in greatest diameter in postpubertal..2) 2or more neurofibromas or one plexiform neurofibroma.3)Freckling in armpit or groin areas4)Optic glioma (optic nerve tumor)5) > 2 Lisch nodules(iris of eye)6)typical bone lesions 7)1deg relative nf1
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2

Sometimes pain:
Neurofibromatosis causes tissue along the nerves to overgrow.This growth can put pressure on affected nerves, causing pain, nerve damage, and loss of function in the area served by the nerve. Problems with feeling or movement can occur, depending on which nerves are affected. However the pain is usually localized to one or two areas.Usually not surgery, unless focus extremely small, but medical rx.
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3

Neurofibromatosis:
Are you certain your sister has NF2? What about NF1? The reason for asking is that cafe au lait spots are not used to diagnose NF2. What about your parents?
Many cases are spontaneous, and you may never develop symptoms of NF. It depends on which type we are talking about and what other family members have it.
Once you are sure of the diagnosis then your questions may be answered.
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4

Nerve ; brain tumors:
Neurofibromatosis, inherited problem, with varying degrees of involvement from mild to severe. Neurofibroma is benign tumor that originates from the nerve cells.Tumors usually arise from nerves in the skin or jut under the skin.Type 1 usually appears in children with brown flat skin spots, freckling in armpits, and soft tumors under the skin and sometimes bone deformity.Type 2 usually brain tumors.
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6

Congenital condition:
Neurofibromatosis is an autosomal dominant genetic disease, meaning if one of your parents has the disease you have a 50% chance of inheriting the disease. There are also instances of spontaneous mutation in about half of cases where an individual has the disease but it is not seen in family members. Either way, you are born with the condition, but may not see symptoms until later.
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7

Define rare:
At 1/4000 births this is relatively common compared to many genetically influenced afflictions. About a 3rd are new mutations and the others are passed from an affected parent to half their offspring.
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9

Long history:
von Recklinghausen's (NF1) has pictorial history, dating back to thirteenth century.In 1768, Akenside published a scientifically-based description of NF1, recognizing that scholars such as Parè and Aldrovandi, in fact suffered from a disorder of the nerves.Neuromas of NF1 were first detailed by Smith in 1849, but Frederick von Recklinghausen is credited with its discovery and coined the name.
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10

Neurofibromatosis:
Neurofibromatosis or nf is an inherited disorder or one that occur spontaneously in a patient. It is a disorder that involves the nerves, structures that carry information from the brain to outlying parts of our bodies. In nf there are tumors, which in most cases are benign that arise from these nerves. The disease is extremely variable in how it affects a patient.
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